Medical membranes adsorptive properties

BIOELECTROCHEMISTRY. Application of the principles and techniques of electrochemistry to biological and medical problems. It includes such surface and interfacial phenomena as the electrical properties of membrane systems and processes, ion adsorption, enzymatic clotting, transmembrane pH and electrical gradients, protein phosphorylation, cells, and tissues. 

Polyurethane hydrogels are widely used in soft contact lenses, controlled release devices, semipermeable membranes and hydrophilic coatings (66). The properties of polyurethane hydrogels can be varied by variation of their components, such as the polyols, diisocyanate, chain extender, or cross-linker (67-69). Because of the excellent mechanical and physical properties, polyurethanes are widely used in medical applications such as coating for medical devices for preventing protein adsorption (70, 71). 

Nanocomposite membranes represent an emerging class of materials in the area of nanotechnology. Hybrid systems can offer enhanced performance compared to more conventional systems, as the features of lightweight polymers are combined with low technology nanofillers. Nanocomposites with associated selective properties, such as separation, adsorption, sensing and catalysis, are expected to create new market opportunities in the fields of pharmaceuticals, water and wastewater, food, medical and healthcare and energy. 

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